Water-tube steam-boiler.



S. M. GOGKBURN & J. R. & J. TEMPERLEY.

WATER TUBE STEAM BQILER.

APPLICATION FILED JAN. 28. 1908. 996,401 I Patented June-27,1911.

4 sums-sum 1.

1 a" a 0 r C f o 2 2 I I? j 1 h I ma //\/ vz/v raks S. M.. COOKBURN & J. R. & J. TEMPERLEY.

WATER TUBE STEAM BOILER.

APPLICATION FILED JAN.28. 1908.

996,401, Patented June 27,1911.

4 SHEETS-$111131 2.

' v o O OOOOOOOOOOOOOOOOOOOOO O z 00 oooooooooooooooooooeo ooooooooooooooooco000000 oooooooooooc k O 10 )OOOOOO GOOOOO oooooooooogmooooooooooo ooooooooooo )OOOOOOOOOOOO S. M. GOGKBURN 5: J. R. & J. TEMPERLEY.

WATER TUBE STEAM BOILER.

APPLICATION FILED JAN. 2a. 1908.

996,401; Patented June 27, 1911.

4 SHEETS-SHEET S.

S. M.'COOKBURN & J. R. & J. TEMPERLEY.

WATER TUBE STEAM BOILER. v

APPLICATION FILED JAN. 28. 190s.

Patented June 27, 1911.

4 SHEETSSHEET 4.

I Hg- 5? UNITED STATES SIDNEY M. GOCKBURN,

v To all whom it may concern: l Be it: known that we, SIDNEY MANTHORB CooKBURN; JOHN RIDLEY TEMPERLEY, and JOSEPH TEMPERLEY, subjects of the King of Great Britain, and residentsof WVestminster,

England, have invented certain new anduse ful Improvements in Water-Tube Steam- Boilers, of which the following is aspecification. v This invention (relates to improvements in the construction of water, tube steam generators of the type described in the specificatifon of Patent No. 751,718 granted to one .0 us. I I5 The principal features of the present in- 'vention relate to improved means for effecting the progressive heating of the feed- 'water as described the former specification #751718. Accordingly in carrying out this 29"-i1 yention and as in the previous specification m thetotal heat-transmission is'divided into a ber of successive stages and to each stage pecial section of the boiler is devoted. The accompanying drawings show various difi cations of'constructionand arranget3 ofthe elements of Water-tube boilersthe present invention. Inthese': Figure 1 is a sectional side ele- Y H on of one form of boiler, and Fig. 2 is a elevation corresponding therewith, the

F le ft ghand portion being shown in section.

fFigxs is a sectional side elevation ofmodinee form of boiler, and Fig. 1 is a front ele- 1vati0n thereof,the left-hand portion being 3 lik'ewis'e shown in" section.

Figs. land 2 show a method of heating the feed-water in 'yvhich, by means of an inter- 4 :eat ing of the feed-Water during its descent flfrom the t'op of the boiler can be successfully "carried out; and thereby the most perfect conditions afforded forthe transfer of heat from the products of combustion to the feed-water.

A ding to this form of construction, the

. 4 fe'ed-water is supplied under'ipressure by rd pumps tothe upper compartment of the ".npper horizontaltr'unk k and traverses a "til-be70 leading therefrom in a downward opingmanner'to theback of the boiler and means of" a U sha'ped"connector'fktie rned;. 'tothe trunkk," but to a lower com- ;plaeed below and parallelto the first From the lower co ii-partment of the upp'ermost horizontal. In,

L WATER-TUBE STEAM-BOILER.

Ebsed adjuster J, the c of Progressive partitieiit thereof, through a second tubej'fc the partially heated Water t PATENT oFFIoE.

JoHNn. TEMPERLEY, AN-D JOSEPH 'IEMPERIJEYJ-OF -v WESTMINSTER, ENGLAND. 1

Specification of Lettersl' fateiit. Application filed January as, 1908:- 'Ser ia-LNO. 413,129. l A I flows through nipple p'ipesjtothe'upper compartnient of the nextlfi horiiohtal trunk 70" from which it flowsand to whiolf i tf'rettirils v by means similar to thosewliicli 'ha've'been described with refere ct' and so on in succession r 1 To permit of the-escapeon'filling the boiler and any 'st'amwhich"inaybe generated in the feed heatingisectiofifunder abnormal circumstance fort instancea t trunli temporary interruption feed-water, one or more pipes farepr'ovid'ed leading from the .upper c0mpartnient of. the upper -most trunk lc-to 'the'upper side, to the steam drum C. On arriving'at'the lowercompartment of the bottom t-ru'nkill the -water, which A should have a temperature distinctly short of the boiling point, twill fiow "through" nipple pipes to the front 'h 'orizontal tifunkfi of the adjuster section J which will flow in parallel through tubes y' fwhich slope upward to the backof the boilertto aback horizontal trunk. 7' which; at intervals along f its length, is provided r'isersfj f the upperfends of which 'arefconnectejdto aback steam-drumc alofig adjust er section'J the water'will, normallygbe "raised to the boiling point"tailid any steam which may be generatedtherein will readily find its way through' thej" risers j. lto the connected by the risers j? tb the Shea-mp (1mm steam-drum C The trunkjtjbesides bing I in line with the risers, cbnnected"to"theuppermost back horizontahtrunk' ptbfof 'the steam-generating section; of tlgieboiler, a From this trunk steamj-geiieratiiig 'tubes m extend vin a downward: s 1opi;ig*dirtion= to a horizontal trunkmt intheifront of the boiler. and below these tfdnlts'" andftubes other similarly constricted 'm 'and' m? and steam-generating tube m? arep'rovided,

to a. pair of l ay er s of tubesm, 1 3

In the fstgeam' generating tubes m extracting pipes f, leading *iiitoj ascension pipes f are" fitted to carry awaythe'geuen v rs e m his ma na? I: Rl't a qfi lyf scribed. The steam thus delivered to the the front trunks a back steam-drum C will pass to the front drum 0 through a nest of comparatively small-bore pipes c which, being surrounded with products of combustion which are normally at a higher temperature than the steam, will operate to effect the drying of the steam and possibly its superheating also. Any water which may be conveyed with the steam through the steam-extracting and ascension pipes will flow from the back drum C to the front drum C through tubes 0 and,

by traversing the products of combustion once more, will have-another opportunity of extracting heat'therefrom. By making j and m with a wave profile, spaces will be provided for the free insertion of brushes and other tools for cleaningthe outside surfaces of the tubes.

The purpose ofthe adjuster J is to make provision for variations in the conditions under which the boiler may be operating as sometimes it may be forced and at other times steaming easily, it being important to avoid the generation of .steai'nin the tubes 70 and very desirable that on reachin the steam-generating section the water shou d be of Figs. 1 and 2. Also the trunks k are divided into upper and lower compartments as in the previous boiler but, lnstead of 0011- necting together the back ends of consecutive tubes 72 k as in Fi 4, those ends are closed and the water whlch'fiows along the P tube from the upper compartment of his required to return to the front of the boiler through an open-ended internal pipe 7:; the front end of which occupies'an orifice formed in the partition which separates the two'- compartments of the trunk and 'rnouths on to a similar'pipe'k inserted withln the next lower tube k By this second pipe k the artially heated water will be conducted to t e back end of the boiler and required to again proceed to the front through the annular space between the tube is and the inserted pipe k Otherwise the construction is as previously described with; reference to Fig. 4. By such a construction the employment of the connectors k .will be a'volded. The pipes 10 can be readily ex-' tracted through the doors'in the trunks 70 for purposes of inspection, cleaning and repairs. I

According to, the construction shown in Figs. 3-and4'and also in Figs. 1 and 2 there is, at each corner of the boiler a downcast pipe n which,'at itslower end, is connected to a header n and at its upper end to one of the steam-drums C or C The headers at the front corners of the boiir are connected to the ends of the horizon, al trunks m by means of nipple pipes and thus any Water carried up with the steam through the steam-extraction and ascension pipes will be returned to the steam-generatin tubes m We claim.

1. In a water tube boiler, a feed water inlet, a feed heating section comprising a plued tubes arranged in different levels, said feed water inlet communicating with the tubes in the upper level, an adjuster section. communicating with the tubes in the lower level. of said feed heating section, said ad-' juster section comprising a plurality of tubes through which the water flows, a steam generating section communicatingwit-h said adjuster section and provided with steam extracting ipes, a'steam drum, and a conduit exten ing between said adjuster section and said steam drum.

2. In a water tube boiler, a feed water inlet, a 'feed heating section comprising a plurality of substantially parallel interconnected tubes arranged in different levels, said per .end of said feed heater, a section {through which the fluid subsequently passes consistlng of a horizontal trunk connected to the lower endof said-feed-heater, a second horizontal trunk, a series of comp'aratively' narrow tubes sloping upward from and connecting said first mentioned trunk with said second trunk, a steam drum, a riserconnecting said second trunk with said steam drum \and' a steam generating section fitted with steam extracting pipes connected to said second trunk. i 3,- In a water tube boiler, a feed water in.- let, a feed heating section comprising a plurality of substantially parallel interconnected tubes arranged in di erent, levels, said feed water inlet commu 'cating with the upper end ofsaid feedhea r, a section through which the fluid subsequ [ntly passes consisting of a front horizontal trunk connected tothe lower end of said feed-heater, a back horizontal trunk, a series of comparatively narrow tubes sloping upward from and connecting saidfront trunk with said back trunk, a steam drum,- a riser con necting said back trunk with said steam drum and a steam generating section fitted with steam extracting pipes connected to said back trunk.

4:. In a water-tube boiler, a steam-generating section comprising horizontaltrunks at one side of the boiler, horizontal trunks at the other side of the boiler, layers of aprality of substantially parallelinterconnect- I feed water inlet communicatingwith the up-- a ass sci proximately horizontal water-tubes connecting said first-mentionedtrunks and said secon'd-mentioned trunks, a steam drum, downing section comprising front horizontal trunks, back horizontal trunks, layers of approximately horizontal Water-tubes connecting said front trunks and said back'trunks,

asteam drum, down-cast pipes leading from said steam'drum to said second mentioned trunks, risers leading to said steam drum from said back trunks, steam-extracting pipes located in said Water-tubes and steam ascension pipes located in said risers and leading from said steam-extracting pipes to 6. In a Water-tube boiler, a steam generatone side of the boiler, horizontal'trunks at the other side of the boiler, a plurality of layers of approximately horizontal Watertubes connecting each of said first mentioned trunks with each of said second-mentioned trunks, a steam drum, down-cast pipes leading from'said steam-drum to said secondmentioned trunks, risers leading to said steam-drum from said secondmentioned trunks, steam extracting pipes, located in said Water-tubes and steam ascension pipes located in said rise-rs and leading from said steam-extracti11g pipes to the steam space.

7. In a water-tube boiler, a steam generating section comprising front horizontal trunks, back horizontal trunks, a plurality of layers of approximately horizontal Wat-ertubes connecting each of said front trunks With each of said back trunks, a steam drum, down-cast pipes leading from said steamdrum to said back trunks, risers leading to said steam-drum from said back trunks, steam-extracting pipes located in said Watertubes and steam-ascension pipes located in said risers and leading from said steam-extracting pipes to the steam space.

In witness whereof We have hereunto set our hands in presence of two Witnesses.

- S. M. COCKBURN.

' JOHN R. TEMPERLEY. JOSEPH TEMPERLEY. l Vitnesses R. S SMITH, H. D. JAMEsoN. 

